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All Question Answers

What are natural and synthetic fibres? Give examples.

Natural fibres come from plants/animals (e.g., cotton  ,Wool o    Synthetic fibres are man-made (e.g., nylon, polyester).

Class 5 Subject: Science Topic: Basic Concepts of Science
How is cotton obtained and made into fabric?

Cotton is obtained from the cotton plant. The process: Plucking → Ginning → Spinning → Weaving/Knitting → Finishing

Class 5 Subject: Science Topic: Basic Concepts of Science
What are nutrients? Explain different types of nutrients.

Nutrients are substances in food that our body needs to grow and stay healthy. Types: Carbohydrates Proteins Fats Vitamins Minerals Water and roughage

Class 5 Subject: Science Topic: Basic Concepts of Science
How does light help us see things?

Light reflects from objects and enters our eyes, helping us see.

Class 5 Subject: Science Topic: Basic Concepts of Science
What is an electric circuit?

A path through which electric current flows. It needs a battery, wire, and bulb or device.

Class 5 Subject: Science Topic: Basic Concepts of Science
What are renewable and non-renewable resources?

Renewable: Can be replaced (e.g., sunlight) Non-renewable: Limited supply (e.g., coal)

Class 5 Subject: Science Topic: Basic Concepts of Science
What is pollution? Name its types.

Pollution is the contamination of air, water, or land. Types: Air, Water, Land, and Noise pollution

Class 5 Subject: Science Topic: Basic Concepts of Science
What is a solution? Give one example.

A solution is formed when a substance dissolves in a liquid. Example: Salt water

Class 5 Subject: Science Topic: Basic Concepts of Science
What is evaporation and condensation?

Evaporation: Liquid to gas Condensation: Gas to liquid

Class 5 Subject: Science Topic: Basic Concepts of Science
What are the three states of matter? Explain with examples

Solid: Has shape (e.g., stone)·       Liquid: Takes shape of container (e.g., milk) ·       Gas: Fills the space available (e.g., air)

Class 5 Subject: Science Topic: Basic Concepts of Science

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